Piston-ring remover



W. ZETZMAN.

PISTON RING REMOVER.

APPLICATION FILED Aue.31 1918.

1,366,857. 'Patente-d Jan. 25,1921.

l/Mi nessw UNITED STATES WALTER ZETZMAN, OF CORNELIUS, OREGON.

PISTON -RING- REMOVER.

Application filed August 31, 1918.

1/ Y0 all Iw/zom t may concern.'

Be it known that I, WALTER ZETZMAN, a citizen of the United States,residing at Cornelius, in the county of Washington and State of Oregon,have invented new and useful Improvements in Piston-Ring Removers, ofwhich the following is a specification.

This invention relates to new and useful improvements in piston ringremovers and the principal object of the invention is to provide adev'ice for quickly and easily compressing the rings in their grooves inthe piston so that the said piston may be removed or replaced in thecylinder.

Another obje-'t of the invention is to provide a device of thisehararter which is sim2 ple and durable in construction, reliable andefficient in operation and one which can be manufactured and placed uponthe market at a minimum cost.

The inventionl also consists in certain other features of construitionand in the combination and'arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to theaccompanying' drawings wherein like characters denote like orcorresponding parts throughout th several views, and in whi:h:

Figure l is a perspective View of the device.

Fig. 2 is` a sectional View showing the device inuse:

As shown in these views the device consists of a body part 1 which ismade in the form of a' split sleeve, the side opposite the slit beingextended to form a point 2. I prefer to make the lower end of thissleeve of curved formation with the curve beginning at the end of `theslit and extending Specification of Letters Patent.

Patented Jan. 25, 1921.

semi No. 252,156.

downwardly to the point oppositethe slit. 'I he upper end of the sleeveis provided with' a handle 3 of substantially U-shape.

As shown in Fig. 2, the point of the device is pushed under the pointsof the ring and pressed downwardly until the ring is forced from-itsgroove in the piston. The ring can then be removed by simply withdrawingthe device from around the piston. It will be understood that either oneor all of the rings can be removed or replaced by the device.

I prefer to make the device of tough spring steel which must be rolledout very t in,

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent'.

I desire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall within the scope of the appended claim.

What I claim is z- A piston ring remover comprising a cylindrical shellprovided at one end with a handle and having its other end diagonallycut away whereby to provide a lateral open ing and a depending point,said'depending point being' engageable between a piston.

ring' and its groove whereby upon longitudinal and lateral movement ofsaid shell said shell may be disposed in encircling relation to thepiston between the piston and its ring for expanding the ring andremoving the same from its groove, the lateral opening permitting thelateral movement of the shell for engagement upon the piston, and saidcylindrical portion of the shell being substantially of the same lengthas said cutaway portion whereby said shell may be slid a considerabledistance onto said piston.

In testimony whereof I atx my signature.

IVALTER ZETZMAN.

